2.1.3 Maple

A grade

{ 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 13, 14, 21, 22, 24, 29, 31 }

B grade

{ 10, 28 }

C grade

{ 12, 15, 16, 17, 18, 19, 20, 23, 30 }

F normal fail

{ 25 }

F(-1) timedout fail

{ }

F(-2) exception fail

{ }